Short-Term External Debt and Foreign Exchange Rate Volatility in Emerging Economies: Evidence from the Korea Market

Abstract:

We empirically analyze the main determinants of foreign exchange rate (FX) volatility in emerging market economies using the data of Korea corporations and financial institutions. We find that short-term external debt is more important than trading volume of foreign investors in explaining FX volatility. Our results suggest that short-term debt-controlling measures, such as a tax levy on short-term borrowing, can be more effective in moderating FX volatility than can the measures affecting the trading volume, such as a Tobin tax.     

Foreign currency-denominated borrowing in the absence of operating incentives

It is well known that corporations issue foreign currency-denominated debt to hedge foreign currency cash flows with offsetting interest payments. We test an alternative “opportunistic” motive for foreign currency-denominated borrowing. We do so by constructing a comprehensive sample of foreign currency-denominated bonds issued by sovereign government and agency issuers with no foreign currency cash flows or foreign operations. We find strong and consistent evidence that the borrowers in our sample consider cross-currency differences in covered and uncovered interest yields in choosing the currency in which to denominate their international debt. We estimate the average gains to opportunistic covered yield borrowing to be 4 to 18 basis points. Interestingly, we also find that the average bond offering in our sample precedes a large and beneficial depreciation of the issue currency over the course of the following year. These results support what has been a frequent conjecture in the foreign debt market.     

Foreign currency borrowing surrounding the global financial crisis: Evidence from Korea

We present a complete profile of firms’ foreign currency borrowing surrounding the 2007 global financial crisis. Employing extensive data from Korean firms during 2002–2012, we find that foreign currency borrowing is significantly related to firm attributes of export revenues, firm size, tangible assets and asset growth, as well as to macro-level factors. These results offer two important implications. First, macroeconomic factors alone cannot fully explain firms’ foreign currency borrowing. Second and more importantly, these firm attributes are indicative of a lower default probability and larger collateral value, which would not only facilitate borrowers’ access to foreign currency debt markets but also offer lenders a better protective cushion from possible loan defaults in the face of exchange rate changes and information asymmetry on borrowers’ credits. Period wise, asset-related firm attributes have more pronounced effects in the post- than pre-crisis period. We further show that banking regulations following the crisis effectively limit the access to foreign currency borrowing by Korean firms, most significantly by those belonging to large business groups.     

Sovereign CDS Spreads,Volatility, and Liquidity: Evidence from 2010 German Short Sale Ban

The paper examines global impact of 2010 German short sale ban on sovereign credit default swap (CDS) spreads, volatility, and liquidity across 54 countries. We find that CDS spreads continue rising after the ban in the debt crisis region, which suggests that the short selling ban is incapable of suppressing soaring borrowing costs in these countries. However, we find that the ban helps stabilize the CDS market by reducing CDS volatility. The reduction in CDS volatility is greater in the eurozone than that in the non‐eurozone. Furthermore, we find that the CDS market liquidity has been impaired during the ban for the PIIGS (Portugal, Ireland, Italy, Greece, and Spain) countries. In contrast, there are no dramatic changes in the market liquidity for non‐PIIGS eurozone and non‐eurozone samples. The findings suggest that the short sale ban is ineffective to reduce sovereign borrowing costs in the debt crisis region if the underlying economy has not been significantly improved.     

Optimal Security Design and Dynamic Capital Structure in a Continuous-Time Agency Model

We derive the optimal dynamic contract in a continuous‐time principal‐agent setting, and implement it with a capital structure (credit line, long‐term debt, and equity) over which the agent controls the payout policy. While the project's volatility and liquidation cost have little impact on the firm's total debt capacity, they increase the use of credit versus debt. Leverage is nonstationary, and declines with past profitability. The firm may hold a compensating cash balance while borrowing (at a higher rate) through the credit line. Surprisingly, the usual conflicts between debt and equity (asset substitution, strategic default) need not arise.     

The cost of private debt over the credit cycle

We identify global and regional fluctuations in international private debt flows to emerging and developing countries using data on cross-border loans and international bond issuance over 1993–2009. We use micro-level data on syndicated cross-border loans and international bond placements to estimate the effects of individual borrower characteristics as well as macroeconomic conditions on the cost of foreign borrowing and test whether these effects differ across phases of the lending cycle. First, we find that borrower characteristics associated with lower loan spreads are not necessarily associated with lower bond spreads. Second, we find differential effects of borrower characteristics between cycle phases for loans and bonds separately. Third, we find strong reductions in the cost of debt finance during periods when international debt flows are more than one standard deviation above their mean, but not for expansionary periods, when the growth rate of debt flows is increasing. We also find that higher trade ratios in the borrower's home country raise loan spreads more in periods of high credit flows but have no effect on bond spreads. At the same time, borrowers residing in countries with high investment ratios pay lower spreads on bond issuance particularly during periods of high credit flows, but we find no similar effect for loan spreads. Inflation rates, real exchange rates and previous banking crises have small impacts on loan and bond spreads.     

A portfolio based theory of excessive foreign borrowing and capital control in a small open economy

We develop a simple model of portfolio choice in a mean variance framework to address the issue of international borrowing and financial crisis. Instead of adverse selection or moral hazard of lending and borrowing activities we emphasise the role of exchange rate movement. Syndicated borrowing by way of internalising the aggregate effect tends to restrict excessive borrowing from external source. However, this may undermine the welfare consequences by further aggravating the extent of risk undertaken in the process. There is a built-in externality in the model that leads to over exposure to foreign currency debt and readily calls for intervention by the government. Government intervention by way of a tax on foreign borrowing may help restrain the amount of external debt and implement the first best.     

Resaleable debt and systemic risk

Many debt claims, such as bonds, are resaleable; others, such as repos, are not. There was a fivefold increase in repo borrowing before the 2008–2009 financial crisis. Why? Did banks’ dependence on non-resaleable debt precipitate the crisis? In this paper, we develop a model of bank lending with credit frictions. The key feature of the model is that debt claims are heterogenous in their resaleability. We find that decreasing credit market frictions leads to an increase in borrowing via non-resaleable debt. Such borrowing has a dark side: It causes credit chains to form, because, if a bank makes a loan via non-resaleable debt and needs liquidity, it cannot sell the loan but must borrow via a new contract. These credit chains are a source of systemic risk, as one bank’s default harms not only its creditors but also its creditors’ creditors. Overall, our model suggests that reducing credit market frictions may have an adverse effect on the financial system and even lead to the failures of financial institutions.     

The Debt Equivalence Of Leases In The UK: An Empirical Investigation

In finance theory, leasing is viewed as a form of borrowing. Prior studies have indicated that secured debt and lease are regarded as equivalent by the capital market.The following questions are addressed: i) do debt and lease have the same effects on the volatility of equity return? ii) Have changes in the accounting regulations altered the effect of lease obligation on the volatility of equity return? The results indicate that, on average, finance leases have a positive effect on the volatility of the return on equity as debt does. It is also found that the market considers leases more favourably (less risky) than debt.Two explanations are possible for the favourable treatment: i) the finance lease obligations are less like debts due to the imposed capitalisation requirements; ii) firms pay high costs of leasing because of the benefits from leasing relative to debt and the market reacts to those benefits favourably.     

Foreign currency debt,financial crises and economic growth: A long-run view

Foreign currency debt is widely believed to increase risks of financial crisis, especially after being implicated as a cause of the East Asian crisis in the late 1990s. In this paper, we study the effects of foreign currency debt on currency and debt crises and its indirect effects on short-term growth and long-run output effects in both 1880–1913 and 1973–2003 for 45 countries. Greater ratios of foreign currency debt to total debt are associated with increased risks of currency and debt crises, although the strength of the association depends crucially on the size of a country's reserve base and its policy credibility. We found that financial crises, driven by exposure to foreign currency, resulted in significant permanent output losses. We estimate some implications of our findings for the risks posed by currently high levels of foreign currency liabilities in eastern Europe.     

THE ECONOMICS OF THE GOVERNMENT BUDGET CONSTRAINT

This article summarizes the simple analytics of the macroeconomiceffects of government budget deficits. The presentation is organizedaround three key relationships: the national income accountsbudget deficit identity, the deficit financing identity, andthe dynamic equation for the evolution of the ratio of publicdebt to gross national product. The national income accountsidentity highlights the effect of the deficit on domestic savingand investment and the current account. Examining the financingof the deficit brings to light the different kinds of macroeconomicimbalance the deficit can cause—as a first approximation,printing money excessively shows up as inflation, excessiveuse of foreign reserves leads to crises in the balance of payments,high foreign borrowing leads to a debt crisis, and too muchdomestic borrowing leads to high real interest rates and crowdingout of private investment. The debt dynamics equation is usedto show the long-run constraints on fiscal policy.      

Spot and forward volatility in foreign exchange

This paper investigates the empirical relation between spot and forward implied volatility in foreign exchange. We formulate and test the forward volatility unbiasedness hypothesis, which may be viewed as the volatility analogue to the extensively researched hypothesis of unbiasedness in forward exchange rates. Using a new dataset of spot implied volatility quoted on over-the-counter currency options, we compute the forward implied volatility that corresponds to the delivery price of a forward contract on future spot implied volatility. This contract is known as a forward volatility agreement. We find strong evidence that forward implied volatility is a systematically biased predictor that overestimates movements in future spot implied volatility. This bias in forward volatility generates high economic value to an investor exploiting predictability in the returns to volatility speculation and indicates the presence of predictable volatility term premiums in foreign exchange.     

Foreign Direct Investment and Debt Financing in Emerging Economies

The rich dynamics of capital flows is an important characteristic of business cycles in emerging market economies. In the data external debt is always procyclical, while FDI is procyclical only in normal times. We provide a microfounded rationale for this pattern by linking financial shocks to capital flows. For this purpose, we build a small open economy model in which firms are subject to borrowing constraints, and are either owned domestically or by foreign investors who purchase firms through FDI. During a financial crisis, the valuation gap per unit net worth between foreign and domestic investors widens, which triggers more FDI inflow. Our model produces business cycle moments consistent with empirical observations.     

Creditor rights and debt allocation within multinationals

We analyze the optimal debt structure of multinational corporations choosing between centralized or decentralized borrowing. We identify how this choice is affected by creditor rights and bankruptcy costs, taking into account managerial incentives and coinsurance considerations. We find that partially centralized borrowing structures are optimal with either weak or strong creditor rights. For intermediate levels of creditor rights fully decentralized (centralized) borrowing structures are optimal if managers have strong (weak) empire-building tendencies. Decentralized borrowing is more attractive for companies focussing on short-term profitability. Credits are rather taken in countries with better creditor rights and more efficient insolvency systems.     

United States current account deficits: A stochastic optimal control analysis

The “Pessimists” and the “Optimists” disagree whether the US external deficits and the associated buildup of US net foreign liabilities are problems that require urgent attention. A warning signal should be that the debt ratio deviates significantly from the optimal ratio. The optimal debt ratio or debt burden should take into account the vulnerability of consumption to shocks from the productivity of capital, the interest rate and exchange rate. The optimal debt ratio is derived from inter-temporal optimization using Dynamic Programming, because the shocks are unpredictable, and it is essential to have a feedback control mechanism. The optimal ratio depends upon the risk adjusted net return and risk aversion both at home and abroad. On the basis of alternative estimates, we conclude that the Pessimists’ fears are justified on the basis of trends. The trend of the actual debt ratio is higher than that of the optimal ratio. The Optimists are correct that the current debt ratio is not a menace, because the current level of the debt ratio is not above the corresponding level of the optimum ratio.     

Credit booms,banking crises,and the current account

A number of papers have shown that rapid growth in private sector credit is a strong predictor of a banking crisis. This paper will ask if credit growth is itself the cause of a crisis, or is it the combination of credit growth and external deficits? This paper estimates a probabilistic model to find the marginal effect of private sector credit growth on the probability of a banking crisis. The model contains an interaction term between credit growth and the level of the current account, so the marginal effect of private sector credit growth may itself be a function of the level of the current account. We find that the marginal effect of rising private sector debt levels depends on an economy's external position. When the current account is in balance, the marginal effect of an increase in debt is rather small. However, when the economy is running a sizable current account deficit, implying that any increase in the debt ratio is financed through foreign borrowing, this marginal effect is large.     

The effects of increased Interest-rate volatility on LDCs

This paper examines the effects of an increase in the volatility of interest rates on Less Development Countries (LDCs). This examination is accomplished by modeling a representative LDC pursuing an optimal foreign borrowing program over a finite planning horizon. The results suggest that increased volatility may cause LDCs to increase their domestic savings. It is further suggested that it may not be possible to be judge the effects of the greater volatility by observing foreign borrowing.     

基于VECM模型的信贷约束、家庭债务与中国宏观经济波动分析

采用1997~2013年家庭债务、贷款价值比与 GDP 增长率等变量数据,在借鉴 Kim 的模型基础上,构建 VECM 模型,检验了信贷约束、家庭债务与中国宏观经济波动之间的关系。结果表明：短期内宽松的借贷约束促进了家庭债务的增加,从而推动经济增长,但从长期来看,宽松的借贷约束会导致家庭债务过高,阻碍长期经济增长;与居民消费率、家庭债务等变量相比,贷款价值比、利率对宏观经济波动的影响较大。因此,政府决策部门应制定合理的消费金融政策,居民应通过优化家庭资产组合,以实现家庭债务的可持续性增长,从而促进经济增长。     

Determinants of the bid-to-cover ratio in Eurozone sovereign debt auctions

Building on a unique dataset of Eurozone sovereign debt auctions, this paper analyzes the determinants of their bid-to-cover ratios, which is the most common measure of the outcome of an auction. We find that the secondary market yield on the same maturity instrument, past domestic and foreign bid-to-cover ratios and occasionally the number of primary dealers tend to exert a positive effect on the current bid-to-cover ratio, while the opposite is the case for the supply and the volatility of the yield. The results thus suggest that past information helps to predict the demand in auctions.     

The Importance of Corporate Foreign Debt in Managing Exchange Rate Exposures in Non‐Financial Companies

This empirical study of the exchange rate exposure management of Danish non‐financial firms listed on the Copenhagen Stock Exchange shows that debt denominated in foreign currency (‘foreign debt’) is a very important alternative to the use of currency derivatives. The results show that the relative importance of foreign debt is positively related to (1) the extent of foreign subsidiaries, (2) the relative value of assets in place, and (3) the debt ratio. The pivotal role of time horizon is emphasised. These findings are important to firms in other countries with open economies.